bjr
378 = 2 x 189 = 2 x 3 x 63 = 2 x 3 x 9 x 7 = 2 x 3³ x 7
270 = 2 x 135 = 2 x 3 x 45 = 2 x 3 x 5 x 9 = 2 x 3³ x 5
PGCD = 2 x 3³ = 18
378 billets et 270 calots
lots identiques :
378 / 18 = 21 billes
et
270 / 18 = 15 calots
=> 18 paquets de 21 billes et 15 calots chacun